Rant -MIL

Recently my 3weeks baby got admitted due to vomiting of milk & constipation for 5days. MIL blame me for eating rubbish, saying that my confinement meals have 'fried' items, its unhealthy. I shouldn't breast feed baby. It's because of what I eat that causes baby to be constipated. I was so upset. I run away from home back to my mother's place. During my first week of confinement, before my milk supply came in, she say that I got no supply unlike her younger days, she got so much milk. She cook confinement meals for me (first week) but I don't like her cooking , she not happy. Is it wrong for me to run away from home?